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Finding the Fourth Proportional to 58,798.58, 81,061.70 and 40,401.12

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Solution

The fourth proportional to 58,798.58, 81,061.70 and 40,401.12 is: 55,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,798.58 : 81,061.70 = 40,401.12 : x
  2. Step 2: Convert to fraction form
    58,798.58/81,061.70 = 40,401.12/x
  3. Step 3: Cross multiply
    58,798.58x = 81,061.70 × 40,401.12
  4. Step 4: Simplify right side
    58,798.58x = 3,274,983,267.10
  5. Step 5: Solve for x
    x = 3,274,983,267.10/58,798.58
  6. Step 6: Final answer
    x = 55,698.34

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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.