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Finding the Fourth Proportional to 64,853.80, 97,208.70 and 25,397.80

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Solution

The fourth proportional to 64,853.80, 97,208.70 and 25,397.80 is: 38,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,853.80 : 97,208.70 = 25,397.80 : x
  2. Step 2: Convert to fraction form
    64,853.80/97,208.70 = 25,397.80/x
  3. Step 3: Cross multiply
    64,853.80x = 97,208.70 × 25,397.80
  4. Step 4: Simplify right side
    64,853.80x = 2,468,887,120.86
  5. Step 5: Solve for x
    x = 2,468,887,120.86/64,853.80
  6. Step 6: Final answer
    x = 38,068.50

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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.