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Finding the Fourth Proportional to 70,364.69, 105,547.74 and 17,774.22

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Solution

The fourth proportional to 70,364.69, 105,547.74 and 17,774.22 is: 26,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,364.69 : 105,547.74 = 17,774.22 : x
  2. Step 2: Convert to fraction form
    70,364.69/105,547.74 = 17,774.22/x
  3. Step 3: Cross multiply
    70,364.69x = 105,547.74 × 17,774.22
  4. Step 4: Simplify right side
    70,364.69x = 1,876,028,751.26
  5. Step 5: Solve for x
    x = 1,876,028,751.26/70,364.69
  6. Step 6: Final answer
    x = 26,661.51

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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.