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Finding the Fourth Proportional to 52,187.50, 72,018.75 and 29,831.98

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Solution

The fourth proportional to 52,187.50, 72,018.75 and 29,831.98 is: 41,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,187.50 : 72,018.75 = 29,831.98 : x
  2. Step 2: Convert to fraction form
    52,187.50/72,018.75 = 29,831.98/x
  3. Step 3: Cross multiply
    52,187.50x = 72,018.75 × 29,831.98
  4. Step 4: Simplify right side
    52,187.50x = 2,148,461,909.63
  5. Step 5: Solve for x
    x = 2,148,461,909.63/52,187.50
  6. Step 6: Final answer
    x = 41,168.13

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1.5x scale

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.