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Finding the Fourth Proportional to 64,943.80, 97,415.70 and 57,726.70

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Solution

The fourth proportional to 64,943.80, 97,415.70 and 57,726.70 is: 86,590.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,943.80 : 97,415.70 = 57,726.70 : x
  2. Step 2: Convert to fraction form
    64,943.80/97,415.70 = 57,726.70/x
  3. Step 3: Cross multiply
    64,943.80x = 97,415.70 × 57,726.70
  4. Step 4: Simplify right side
    64,943.80x = 5,623,486,889.19
  5. Step 5: Solve for x
    x = 5,623,486,889.19/64,943.80
  6. Step 6: Final answer
    x = 86,590.05

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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.