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Finding the Fourth Proportional to 58,008.88, 87,047.88 and 21,075.76

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Solution

The fourth proportional to 58,008.88, 87,047.88 and 21,075.76 is: 31,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,008.88 : 87,047.88 = 21,075.76 : x
  2. Step 2: Convert to fraction form
    58,008.88/87,047.88 = 21,075.76/x
  3. Step 3: Cross multiply
    58,008.88x = 87,047.88 × 21,075.76
  4. Step 4: Simplify right side
    58,008.88x = 1,834,600,227.39
  5. Step 5: Solve for x
    x = 1,834,600,227.39/58,008.88
  6. Step 6: Final answer
    x = 31,626.20

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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.