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Finding the Fourth Proportional to 9,260,952.66, 12,779,948.88 and 5,130,900.90

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Solution

The fourth proportional to 9,260,952.66, 12,779,948.88 and 5,130,900.90 is: 7,080,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,260,952.66 : 12,779,948.88 = 5,130,900.90 : x
  2. Step 2: Convert to fraction form
    9,260,952.66/12,779,948.88 = 5,130,900.90/x
  3. Step 3: Cross multiply
    9,260,952.66x = 12,779,948.88 × 5,130,900.90
  4. Step 4: Simplify right side
    9,260,952.66x = 65,572,651,210,346
  5. Step 5: Solve for x
    x = 65,572,651,210,346/9,260,952.66
  6. Step 6: Final answer
    x = 7,080,551.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.