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Finding the Fourth Proportional to 58,342.60, 87,368.10 and 38,513.80

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Solution

The fourth proportional to 58,342.60, 87,368.10 and 38,513.80 is: 57,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,342.60 : 87,368.10 = 38,513.80 : x
  2. Step 2: Convert to fraction form
    58,342.60/87,368.10 = 38,513.80/x
  3. Step 3: Cross multiply
    58,342.60x = 87,368.10 × 38,513.80
  4. Step 4: Simplify right side
    58,342.60x = 3,364,877,529.78
  5. Step 5: Solve for x
    x = 3,364,877,529.78/58,342.60
  6. Step 6: Final answer
    x = 57,674.45

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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.