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Finding the Fourth Proportional to 14,427,643,670.80, 21,607,028,129.40 and 14,427,643,670.80

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Solution

The fourth proportional to 14,427,643,670.80, 21,607,028,129.40 and 14,427,643,670.80 is: 21,607,028,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427,643,670.80 : 21,607,028,129.40 = 14,427,643,670.80 : x
  2. Step 2: Convert to fraction form
    14,427,643,670.80/21,607,028,129.40 = 14,427,643,670.80/x
  3. Step 3: Cross multiply
    14,427,643,670.80x = 21,607,028,129.40 × 14,427,643,670.80
  4. Step 4: Simplify right side
    14,427,643,670.80x = 311,738,502,635,935,498,240
  5. Step 5: Solve for x
    x = 311,738,502,635,935,498,240/14,427,643,670.80
  6. Step 6: Final answer
    x = 21,607,028,129.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.