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Finding the Fourth Proportional to 25,570, 35,302.76 and 19,590.56

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Solution

The fourth proportional to 25,570, 35,302.76 and 19,590.56 is: 27,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,570 : 35,302.76 = 19,590.56 : x
  2. Step 2: Convert to fraction form
    25,570/35,302.76 = 19,590.56/x
  3. Step 3: Cross multiply
    25,570x = 35,302.76 × 19,590.56
  4. Step 4: Simplify right side
    25,570x = 691,600,837.95
  5. Step 5: Solve for x
    x = 691,600,837.95/25,570
  6. Step 6: Final answer
    x = 27,047.35

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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.